单选题The accounts receivable department requested an accounts status to allow users to enter either a customer name, customer number, customer phone number and then display the customer out standing balance. You want to restrict the data retrieved based on values entered by the users. Which where clause would you write in the query to select statement to accomplish this task?（）Ap_where_clause B:p_where_clause CWHERE CUST_ID=P_CUST_ID or cust_name=:p_cust_name or cust_phone=:p_cust_phone DWhere cust_ID=p_custid cust_name=p_cust_name or cust_phone=p_cust_phone
单选题
The accounts receivable department requested an accounts status to allow users to enter either a customer name, customer number, customer phone number and then display the customer out standing balance. You want to restrict the data retrieved based on values entered by the users. Which where clause would you write in the query to select statement to accomplish this task?（）
A
&p_where_clause
B
:p_where_clause
C
WHERE CUST_ID=P_CUST_ID or cust_name=:p_cust_name or cust_phone=:p_cust_phone
D
Where cust_ID=&p_custid cust_name=&p_cust_name or cust_phone=&p_cust_phone
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The most important customer a technician has is:（）A、the customer standing right in front of them.B、the customer who owes the company the most money.C、the customer calling on the phone.D、the customer they have an appointment with in an hour.
The accounts receivable department requested an accounts status to allow users to enter either a customer name, customer number, customer phone number and then display the customer out standing balance. You want to restrict the data retrieved based on values entered by the users. Which where clause would you write in the query to select statement to accomplish this task?（）A、p_where_clause B、:p_where_clause C、WHERE CUST_ID=P_CUST_ID or cust_name=:p_cust_name or cust_phone=:p_cust_phone D、Where cust_ID=p_custid cust_name=p_cust_name or cust_phone=p_cust_phone
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单选题The CUSTOMERS table has these columns: CUSTOMER_ID NUMBER(4) NOT NULL CUSTOMER_NAME VARCHAR2(100) NOT NULL STREET_ADDRESS VARCHAR2(150) CITY_ADDRESS VARCHAR2(50) STATE_ADDRESS VARCHAR2(50) PROVINCE_ADDRESS VARCHAR2(50) COUNTRY_ADDRESS VARCHAR2(50) POSTAL_CODE VARCHAR2(12) CUSTOMER_PHONE VARCHAR2(20) Which statement finds the rows in the CUSTOMERS table that do not have a postal code? （）ASELECT customer_id, customer_name FROM customers WHERE postal_code CONTAINS NULL;BSELECT customer_id, customer_name FROM customers WHER postal_code = ' ___________';CSELECT customer_id, customer_name FROM customers WHERE postal _ code IS NULL;DSELECT customer_id, customer_name FROM customers WHERE postal code IS NVL;ESELECT customer_id, customer_name FROM customers WHERE postal_code = NULL;
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单选题The most important customer a technician has is:（）Athe customer standing right in front of them.Bthe customer who owes the company the most money.Cthe customer calling on the phone.Dthe customer they have an appointment with in an hour.
单选题You added a PHONE_NUMBER column of NUMBER data type to an existing EMPLOYEES table. The EMPLOYEES table already contains records of 100 employees. Now, you want to enter the phone numbers of each of the 100 employees into the table. Some of the employees may not have a phone number available. Which data manipulation operation do you perform? （）AMERGEBINSERTCUPDATEDADDEENTERFYou cannot enter the phone numbers for the existing employee records.